NASA NTRS · 19900000492
Controlled-Pinch Spot Welder
Abstract
Handheld spot-welding gun clamps workpiece under air pressure instead of under operator's hand pressure. Trigger actuates both air pressure and welding current. Makes spot welds more repeatable and reliable. Reduces amount of manual labor required and enables welds to be made at faster rate. Compact and light in weight, reaches restricted area that ordinary commercial welding guns cannot.
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Morgen, Gene E.. 1990-09-01. Controlled-Pinch Spot Welder. https://ntrs.nasa.gov/citations/19900000492
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